I am trying to downgrade a device, but when I do copy tftp flash, it does ask me if I want to erase the current ios, instead,I get the following error.
copy tftp flash
Address or name of remote host [X.X.X.X]?
Source filename [c3845-advipservicesk9-mz.124-11.T1.bin]?
Destination filename [c3845-advipservicesk9-mz.124-11.T1.bin]?
Loading c3845-advipservicesk9-mz.124-11.T1.bin from X.X.X.X (via GigabitEthernet0/1): !
%Error copying tftp://10.250.7.250/c3845-advipservicesk9-mz.124-11.T1.bin (Not enough space on device)
The TFTP server is another 3845 I have configured as a tftp server to download the IOS from. I also want to specifically delete the current flash file, but I get the following error:
XXB#erase flash: c3845-advipservicesk9-mz.124-15.T1.bin
% Invalid input detected at '^' marker.
I do not have a lot of experience with the 3845 but I believe that you want to use the command delete flash:c3845-advipservicesk9-mz.124-15.T1.bin instead of the command erase flash:c3845-advipservicesk9-mz.124-15.T1.bin. Give it a try with the different command and let us know what happens.